As a bamboo maker and enthusiast, I have been trying many kinds of lines in an attempt to suit both single and double handed rods. Impressed by the videos that you refer to, with those short heads almost hanging in the air carrying those tight loops seemingly and effortlessly to the horizon..I recently purchased a 7/8 weight 350 Commando head to go with an 11' bamboo double handed rod.
Practicing over the last couple of days, on water, I could not quite replicate the casts in the videos, plagued with enthusiastic trailing loops as I was, at times; however I felt the potential of the lines. Initially I tried with 10' floating poly heads, which did not help matters, struggling to get that anchor. Switching to a 3 ips sinking poly leader was a revelation, as the line started to load the rod.
While on the water I swapped and changed with a couple of other lines in order to compare: Skagit switch and steelhead tactical. The Commando intrigues me more than the other two,being easier to cast, also comparing the Rio
Flight plus one or two others which I have tried.
I am awaiting the delivery of a 150 grain 3wt Commando head from another forum member, to use with single handed rods both graphite (the now revered old model Sage light line) plus bamboo. I am hoping for more great things (having seen more videos), the design of the Commando heads is very interesting indeed.